Oxygen storage material and method for producing the same
US10625246B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Apr 24, 2019 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Apr 24, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An oxygen storage material comprises a La—Co—Al-based composite oxide containing lanthanum, cobalt and aluminum. The La—Co—Al-based composite oxide is in a form in which at least part of the aluminum is solid-dissolved in a La—Co composite oxide having a perovskite structure, and has a composition expressed by the following chemical formula (1): LaCoyAlxOδ (1) where x and y are numbers satisfying conditions of 0<x <1 and 0<y<1, where x+y=0.5 to 1.5, and δ is a number of 1.5 to 4.5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.